1). Which of the following gives the least magnetic field? a. iron-core solenoid b. air-core solenoid c. a current carrying conductor d. a loop of current carrying conductor 2).Which of the following gives greater magnetic field? a. iron-core solenoid b. air-core solenoid c. a current carrying conductor d. a loop of current carrying conductor
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1). Which of the following gives the least magnetic field?
a. iron-core solenoid
b. air-core solenoid
c. a current carrying conductor
d. a loop of current carrying conductor
2).Which of the following gives greater magnetic field?
a. iron-core solenoid
b. air-core solenoid
c. a current carrying conductor
d. a loop of current carrying conductor
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